the REGEXP operator.
<li>Improved error messages in the [RTREE] extension.
<li>Enhance the [command-line shell] so that a non-zero argument to the
".exit" command causes the shell to exist immediately without cleanly
shutting down the database connection.
<li>Improved error messages for invalid boolean arguments to dot-commands
in the [command-line shell].
<li>Remove all uses of umask() in the unix VFS.
<li>Added the [PRAGMA vdbe_debug] command.
<li>Bug fix: Issue an error message if the 16-bit reference counter on a
view overflows due to an overly complex query.
<li>Bug fix: Avoid leaking memory on LIMIT and OFFSET clauses in deeply
nested UNION ALL queries.
<li>Bug fix: Make sure the schema is up-to-date prior to running pragmas
table_info, index_list, index_info, and foreign_key_list.

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the REGEXP operator.
<li>Improved error messages in the [RTREE] extension.
<li>Enhance the [command-line shell] so that a non-zero argument to the
".exit" command causes the shell to exist immediately without cleanly
shutting down the database connection.
<li>Improved error messages for invalid boolean arguments to dot-commands
in the [command-line shell].
<li>Improved error messages for "foreign key mismatch" showing the names of the two tables involved.
<li>Remove all uses of umask() in the unix VFS.
<li>Added the [PRAGMA vdbe_addoptrace] and [PRAGMA vdbe_debug] commands.
<li>Bug fix: Issue an error message if the 16-bit reference counter on a
view overflows due to an overly complex query.
<li>Bug fix: Avoid leaking memory on LIMIT and OFFSET clauses in deeply
nested UNION ALL queries.
<li>Bug fix: Make sure the schema is up-to-date prior to running pragmas
table_info, index_list, index_info, and foreign_key_list.

DebugPragma vdbe_debug {
<p><b>PRAGMA vdbe_debug = </b><i>boolean</i><b>;</b></p>
DISCLAIMER
<p>If SQLite has been compiled with the [SQLITE_DEBUG] compile-time
option, then the vdbe_debug pragma can be used to cause a completelisting of the virtual machine opcodes to appear on standard outputas each statement is evaluated, and to cause each to cause virtualmachine opcodes to be printed on standard output as they are evaluated.(In other words, vdbe_debug is a combination of vdbe_listing and vdbe_trace.) In addition, the vdbe_debug pragma also enables tracingof calls to sqlite3VdbeAddOp() during code generation.
This feature is used for debugging SQLite itself. See the
<a href="vdbe.html#trace">VDBE documentation</a> for more
information.</p>
}
Pragma wal_checkpoint {
<p><b>PRAGMA </b><i>database</i><b>.wal_checkpoint;</b><br>

DebugPragma vdbe_debug {
<p><b>PRAGMA vdbe_debug = </b><i>boolean</i><b>;</b></p>
DISCLAIMER
<p>If SQLite has been compiled with the [SQLITE_DEBUG] compile-time
option, then the vdbe_debug pragma is a shorthand for three otherdebug-only pragmas: vdbe_addoptrace, vdbe_listing, and vdbe_trace.This feature is used for debugging SQLite itself. See the <a href="vdbe.html#trace">VDBE documentation</a> for more information.</p>}DebugPragma vdbe_addoptrace { <p><b>PRAGMA vdbe_addoptrace = </b><i>boolean</i><b>;</b></p> DISCLAIMER <p>If SQLite has been compiled with the [SQLITE_DEBUG] compile-time option, then the vdbe_addoptrace pragma can be used to cause a completeVDBE opcodes to be displayed as they are created during code generation.
This feature is used for debugging SQLite itself. See the
<a href="vdbe.html#trace">VDBE documentation</a> for more
information.</p>
}
Pragma wal_checkpoint {
<p><b>PRAGMA </b><i>database</i><b>.wal_checkpoint;</b><br>

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